Morphological characterization, thermal, and mechanical properties of compatibilized high density polyethylene/polystyrene/organobentonite ternary nanocomposites
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Farida Yahiaoui
Abstract
Composite materials made from high density polyethylene (HDPE) and polystyrene (PS) were successfully prepared in different HDPE/PS weight ratios, by melt mixing 3 wt% of bentonite clay organically modified with hexadecyl ammonium chloride (organo-modified bentonite, OBT). The structure and morphology of these composites were examined by X-ray diffraction and scanning electron microscopy. Morphological changes between the composite and the constituent materials were observed. The decrease in PS (or HDPE) particle size in HDPE/PS 70/30 (or 30/70) that blend after the OBT addition reflects a clear improvement in the HDPE/PS blend compatibility. The effect of OBT on the thermal and mechanical properties was investigated by differential scanning calorimetry, thermogravimetric analysis, and tensile measurements. The main results show a decrease in the HDPE crystallinity in the composite matrices, which reaches 25% for HDPE/PS/OBT 29/68/3 composite, also an improvement of the thermal stability, as evidenced by the higher Tonset values, and finally a reinforcement of the tensile properties as compared to the unfilled blends. Indeed, a significant enhancement of the tensile modulus (~130%) is observed for the 68/29/3 composite matrix as compared to the 70/30 unfilled blend.
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Material properties
- Structure mediation and ductility enhancement of poly(l-lactide) by random copolymer poly(d-lactide-co-ε-caprolactone)
- Morphological characterization, thermal, and mechanical properties of compatibilized high density polyethylene/polystyrene/organobentonite ternary nanocomposites
- Preparation and assembly
- Simultaneous toughening and reinforcing of cyanate ester/benzoxazine resins with improved mechanical and thermal properties by using hyperbranched polyesters
- Surface modification of Sb-SnO2/potassium titanate composite and their performance for acrylic coatings
- Poly (vinyl alcohol)/nano-diamond composite films and hydrogels prepared by gamma ray
- Engineering and processing
- Study on structures and properties of ultra-hot drawing UHMWPE fibers fabricated via dry spinning method
- Separation of CO2/CH4 and O2/N2 by polysulfone hollow fiber membranes: effects of membrane support properties and surface coating materials
- Electric field-induced alignment of MWCNTs during the processing of PP/MWCNT composites: effects on electrical, dielectric, and rheological properties
- A molecular modeling study for miscibility of polyimide/polythene mixing systems with/without compatibilizer
- Analysis and quantitative estimation of phenolic antioxidants in polypropylene packaging for fat products
- Effects of ultrasonic injection molding conditions on the plate processing characteristics of PMMA
Articles in the same Issue
- Frontmatter
- Material properties
- Structure mediation and ductility enhancement of poly(l-lactide) by random copolymer poly(d-lactide-co-ε-caprolactone)
- Morphological characterization, thermal, and mechanical properties of compatibilized high density polyethylene/polystyrene/organobentonite ternary nanocomposites
- Preparation and assembly
- Simultaneous toughening and reinforcing of cyanate ester/benzoxazine resins with improved mechanical and thermal properties by using hyperbranched polyesters
- Surface modification of Sb-SnO2/potassium titanate composite and their performance for acrylic coatings
- Poly (vinyl alcohol)/nano-diamond composite films and hydrogels prepared by gamma ray
- Engineering and processing
- Study on structures and properties of ultra-hot drawing UHMWPE fibers fabricated via dry spinning method
- Separation of CO2/CH4 and O2/N2 by polysulfone hollow fiber membranes: effects of membrane support properties and surface coating materials
- Electric field-induced alignment of MWCNTs during the processing of PP/MWCNT composites: effects on electrical, dielectric, and rheological properties
- A molecular modeling study for miscibility of polyimide/polythene mixing systems with/without compatibilizer
- Analysis and quantitative estimation of phenolic antioxidants in polypropylene packaging for fat products
- Effects of ultrasonic injection molding conditions on the plate processing characteristics of PMMA
